/' => "\n" // fix extra blockquote
);
private static function para ($regs) {
$line = $regs[1];
$trimmed = trim ($line);
if (preg_match ('/^<\/?(ul|ol|li|h|p|bl)/', $trimmed)) {
return "\n" . $line . "\n";
}
return sprintf ("\n%s
\n", $trimmed);
}
private static function ul_list ($regs) {
$item = $regs[1];
return sprintf ("\n", trim($item));
}
private static function ol_list ($regs) {
$item = $regs[1];
return sprintf ("\n\n\t- %s
\n
", trim($item));
}
private static function blockquote ($regs) {
$item = $regs[2];
return sprintf ("\n%s
", trim($item));
}
private static function header ($regs) {
list ($tmp, $chars, $header) = $regs;
$level = strlen ($chars);
return sprintf ('%s', $level + 1, trim($header), $level + 1);
}
/**
* Add a rule.
*/
public static function add_rule ($regex, $replacement) {
self::$rules[$regex] = $replacement;
}
/**
* Render some Markdown into HTML.
*/
public static function render ($text) {
foreach (self::$rules as $regex => $replacement) {
if (is_callable ( $replacement)) {
$text = preg_replace_callback ($regex, $replacement, $text);
} else {
$text = preg_replace ($regex, $replacement, $text);
}
}
return trim ($text);
}
}
////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////
//////////////// Functions ////////////////
///////////////////////////////////////////
//from http://php.net/manual/en/function.filesize.php#106569
function human_filesize($bytes, $decimals = 2)
{
$sz = 'BKMGTPEYZ';
$factor = floor((strlen($bytes) - 1) / 3);
return sprintf("%.{$decimals}f", $bytes / pow(1024, $factor)) . @$sz[$factor];
}
//from http://snippets.pro/snippet/137-php-convert-the-timestamp-to-human-readable-format/
function human_time_since($time)
{
$timediff = time() - $time;
$tokens = array (
31536000 => 'year',
2592000 => 'month',
604800 => 'week',
86400 => 'day',
3600 => 'hour',
60 => 'minute',
1 => 'second'
);
foreach ($tokens as $unit => $text) {
if ($timediff < $unit) continue;
$numberOfUnits = floor($timediff / $unit);
return $numberOfUnits.' '.$text.(($numberOfUnits>1)?'s':'').' ago';
}
}
///////////////////////////////////////////
switch($_GET["action"])
{
case "edit":
if(!$editing)
{
http_response_code(203);
header("location: index.php?page=" . $_GET["page"]);
}
if(!$isloggedin and !$anonedits)
{
//future let the user view the page source instead
http_response_code(403);
header("refresh: 5; url=index.php?page=" . $_GET["page"]);
header("content-type: text/plain");
exit("You must be logged in to edit $sitename. Redirecting to page view in 5 seconds....");
}
$filename = $_GET["page"] . ".md";
$creatingpage = !isset($pageindex->$_GET["page"]);
if((isset($_GET["newpage"]) and $_GET["newpage"] == "true") or $creatingpage)
{
$title = "Creating " . $_GET["page"];
}
else
{
$title = "Editing " . $_GET["page"];
}
$pagetext = "";
if(isset($pageindex->$_GET["page"]))
{
$pagetext = file_get_contents($filename);
}
$content = "$title
";
if(!$isloggedin and $anonedits)
{
$content .= "Warning: You are not logged in! Your IP address may be recorded.
";
}
$content .= "";
exit(renderpage("$title - $sitename", $content));
break;
case "save":
if(!$editing)
{
header("location: index.php?page=" . $_GET["page"]);
exit(renderpage("Error saving edit", "Editing is currently disabled on this wiki.
"));
}
if(!$isloggedin and !$anonedits)
{
http_response_code(403);
header("refresh: 5; url=index.php?page=" . $_GET["page"]);
exit("You are not logged in, so you are not allowed to save pages on $sitename. Redirecting in 5 seconds....");
}
if(!isset($_POST["content"]))
{
http_response_code(400);
header("refresh: 5; url=index.php?page=" . $_GET["page"]);
exit("Bad request: No content specified.");
}
if(file_put_contents($_GET["page"] . ".md", htmlentities($_POST["content"]), ENT_QUOTES) !== false)
{
//update the page index
if(!isset($pageindex->$_GET["page"]))
{
$pageindex->$_GET["page"] = new stdClass();
$pageindex->$_GET["page"]->filename = $_GET["page"] . ".md";
}
$pageindex->$_GET["page"]->size = strlen($_POST["content"]);
$pageindex->$_GET["page"]->lastmodified = time();
if($isloggedin)
$pageindex->$_GET["page"]->lasteditor = utf8_encode($user);
else
$pageindex->$_GET["page"]->lasteditor = utf8_encode("anonymous");
file_put_contents("./pageindex.json", json_encode($pageindex, JSON_PRETTY_PRINT));
if(isset($_GET["newpage"]))
http_response_code(201);
else
http_response_code(200);
header("location: index.php?page=" . $_GET["page"]);
exit();
}
else
{
http_response_code(507);
exit(renderpage("Error saving page - $sitename", "$sitename failed to write your changes to the disk. Your changes have not been saved, however you may be able to recover your edit by pressing the back button in your browser.
Please tell the administrator of this wiki (" . $admindetails["name"] . ") about this problem.
"));
}
break;
case "list":
$title = "All Pages";
$content = " $title on $sitename
| Page Name |
Size |
Last Editor |
Lasted Edit |
Time Since Last Edit |
\n";
foreach($pageindex as $pagename => $pagedetails)
{
$content .= "\t\t
| $pagename |
" . human_filesize($pagedetails->size) . " |
$pagedetails->lasteditor |
" . date("l jS \of F Y \a\\t h:ia T", $pagedetails->lastmodified) . " |
" . human_time_since($pagedetails->lastmodified) . " |
\n";
}
$content .= "
";
exit(renderpage("$title - $sitename", $content));
break;
case "help":
$title = "Help - $sitename";
$content = " $sitename Help
Welcome to $sitename!
$sitename is powered by Pepperminty wiki, a complete wiki in a box you can drop into your server.
Navigating
All the navigation links can be found in the top right corner, along with a box in which you can type a page name and hit enter to be taken to that page (if your site administrator has enabled it).
In order to edit pages on $sitename, you probably need to be logged in. If you do not already have an account you will need to ask $sitename's administrator for an account since there is not registration form. Note that the $sitename's administrator may have changed these settings to allow anonymous edits.
Editing
$sitename's editor uses a modified version of slimdown, a flavour of markdown that is implementated using regular expressions. See the credits page for more information and links to the original source for this. A quick reference can be found below:
| Type This | To get this |
|---|
_italics_ | italics |
*bold* | bold |
# Heading | Heading |
## Sub Heading | Sub Heading |
[[Internal Link]] | Internal Link |
[[Display Text|Internal Link]] | Display Text |
[Display text](//google.com/) | Display Text |
~~Strikethrough~~ | Strikethough |
> Blockquote
> Some text | Blockquote
Some text |
---
|
|
";
exit(renderpage($title, $content));
break;
case "login":
$title = "Login to $sitename";
$content = "Login to $sitename
\n";
if(isset($_GET["failed"]))
$content .= "\t\tLogin failed.
\n";
$content .= "\t\t";
exit(renderpage($title, $content));
break;
case "checklogin":
if(isset($_POST["user"]) and isset($_POST["pass"]))
{
//the user wants to log in
$user = $_POST["user"];
$pass = $_POST["pass"];
if($users[$user] == hash("sha256", $pass))
{
$isloggedin = true;
$expiretime = time() + 60*60*24*30; //30 days from now
setcookie($cookieprefix . "-user", $user, $expiretime, "/");
setcookie($cookieprefix . "-pass", hash("sha256", $pass), $expiretime, "/");
//redirect to wherever the user was going
http_response_code(302);
if(isset($_POST["goto"]))
header("location: " . $_POST["returnto"]);
else
header("location: index.php");
exit();
}
else
{
http_response_code(302);
header("location: index.php?action=login&failed=yes");
exit();
}
}
else
{
http_response_code(302);
header("location: index.php?action=login&failed=yes&badrequest=yes");
exit();
}
break;
case "logout":
$isloggedin = false;
unset($user);
unset($pass);
setcookie($cookieprefix . "-user", null, -1, "/");
setcookie($cookieprefix . "-pass", null, -1, "/");
exit(renderpage("Logout Successful", "Logout Successful
Logout Successful. You can login again here.
"));
break;
case "credits":
$title = "Credits - $sitename";
$content = "$sitename credits
$sitename is powered by Pepperminty Wiki - an entire wiki packed inside a single file, which was built by Starbeamrainbowlabs, and can be found on github.
A slightly modified version of slimdown is used to parse text source into HTML. Slimdown is by Johnny Broadway, which can be found on github.
The default favicon is from Open Clipart by bluefrog23, and can be found here.
";
exit(renderpage($title, $content));
break;
case "hash":
if(!isset($_GET["string"]))
{
http_response_code(400);
exit(renderpage("Bad request", "The GET parameter string must be specified.
It is strongly recommended that you utilise this page via a private or incognito window.
"));
}
else
{
exit(renderpage("Hashed string", "" . $_GET["string"] . " → " . hash("sha256", $_GET["string"] . "
")));
}
break;
case "view":
default:
//check to make sure that the page exists
if(!isset($pageindex->$_GET["page"]))
{
if($editing)
{
//editing is enabled, redirect to the editing page
http_response_code(307); //temporary redirect
header("location: index.php?action=edit&newpage=yes&page=" . rawurlencode($_GET["page"]));
exit();
}
else
{
//editing is disabled, show an error message
http_response_code(404);
exit(renderpage("" . $_GET["page"] . " - $sitename", $_GET["page"] . " does not exist.
Since editing is currently disabled on this wiki, you may not create this page. If you feel that this page should exist, try contacting this wiki's Administrator.
"));
}
}
$title = $_GET["page"] . " - $sitename";
$content = "" . $_GET["page"] . "
";
$slimdown_start = microtime(true);
$content .= Slimdown::render(file_get_contents($_GET["page"] . ".md"));
$content .= "\n\t\n";
if(isset($_GET["printable"]) and $_GET["printable"] === "yes")
$minimal = true;
else
$minimal = false;
exit(renderpage($title, $content, $minimal));
break;
}
?>